Document Detail


Effect of lactic and citric acid on the stability of B-aflatoxins in extrusion-cooked sorghum.
MedLine Citation:
PMID:  18498319     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
AIMS: To evaluate the effect of the extrusion-cooking process with the addition of different acids concentration on the stability of B-aflatoxins in sorghum. METHODS AND RESULTS: Experimental units (EU) of sorghum flour contaminated with B-aflatoxins (140 ppb) were extrusion cooked with aqueous lactic or citric acid at six different concentrations. The effects of the two extrusion variables (moisture content and acid concentration) were analysed as a completely randomized factorial 3 x 6 design. Under some conditions, the aflatoxin reduction is more effective when using aqueous citric acid (up to 92%), than when using aqueous lactic acid (up to 67%). CONCLUSIONS: With citric acid, some extrusion treatments produced higher aflatoxin degradation rates, than those produced with lactic acid. SIGNIFICANCE AND IMPACT OF THE STUDY: Aflatoxin contamination is a great risk both for human as well as for animal health in underdeveloped countries; consequently, practical and economical detoxification procedures are needed that eliminate or at least minimize the aflatoxin risk, through lowering aflatoxin concentrations in grains. Under these considerations, extrusion process can be used for reduction in the aflatoxin content in contaminated grains.
Authors:
A Méndez-Albores; F Martínez-Bustos; M Gaytán-Martínez; E Moreno-Martínez
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-05-21
Journal Detail:
Title:  Letters in applied microbiology     Volume:  47     ISSN:  1472-765X     ISO Abbreviation:  Lett. Appl. Microbiol.     Publication Date:  2008 Jul 
Date Detail:
Created Date:  2008-06-18     Completed Date:  2008-08-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8510094     Medline TA:  Lett Appl Microbiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1-7     Citation Subset:  IM    
Affiliation:
Universidad Nacional Autónoma de México - FESC, Cuautitlán Izcalli, Estado de México, México. albores@walla.com
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MeSH Terms
Descriptor/Qualifier:
Aflatoxin B1 / metabolism*
Citric Acid / pharmacology*
Cookery
Decontamination / methods
Drug Stability
Food Contamination / analysis
Food Handling
Food Technology / methods
Lactic Acid / pharmacology*
Sorghum / chemistry*,  microbiology*
Chemical
Reg. No./Substance:
1162-65-8/Aflatoxin B1; 50-21-5/Lactic Acid; 77-92-9/Citric Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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